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ECE1 p.Asn566=

c.1698C>T · VCV4848818

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00944%, amr)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -6.4GERP -2.9
Overall
CADD4.934PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00944% Admixed American · 5/52,952 alleles
Filtering AF 0.00419% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0038%
Overall 0.0048% 75/1,564,098 alleles · very rare
Ancestry group Frequency 1 in
Admixed Americangrpmax 0.00944% 10,590
African / African-American 0.00678% 14,749
Remaining individualsnot grpmax-eligible 0.0066% 15,160
European (non-Finnish) 0.00529% 18,910

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene
ECE1
Protein
p.Asn566=
Coding
c.1698C>T
MANE Select
NM_001397
Type
single nucleotide variant
Location
chr1:21228014 (GRCh38)
Gene constraint
LOEUF 0.482 · pLI 0.99 (gnomAD)
Structure
AlphaFold pLDDT 91.16 · 1 PDB
Residue 566
a disulfide bond; the peptidase m13 domain
Full ECE1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/ece1-p-asn566 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown